Quarter	US dollars
2004-12-31	42
2005-03-31	34
2005-06-30	18
2005-09-30	21
2005-12-31	19
2006-03-31	40
2006-06-30	35
2006-09-30	45
2006-12-31	37
2007-03-31	43
2007-06-30	44
2007-09-30	59
2007-12-31	52
2008-03-31	101
2008-06-30	109
2008-09-30	75
2008-12-31	73
2009-03-31	60
2009-06-30	59
2009-09-30	72
2009-12-31	63
2010-03-31	94
2010-06-30	100
2010-09-30	107
2010-12-31	95
2011-03-31	101
2011-06-30	111
2011-09-30	97
2011-12-31	40
2012-03-31	104
2012-06-30	127
2012-09-30	108
2012-12-31	100
2013-03-31	90
2013-06-30	73
2013-09-30	74
2013-12-31	94
2014-03-31	172
2014-06-30	173
2014-09-30	152
2014-12-31	150
2015-03-31	83
2015-06-30	66
2015-09-30	89
2015-12-31	105
2016-03-31	111
2016-06-30	109
2016-09-30	87
2016-12-31	84
2017-03-31	155
2017-06-30	117
2017-09-30	220
2017-12-31	186
2018-03-31	152
2018-06-30	114
2018-09-30	132
2018-12-31	117
2019-03-31	146
2019-06-30	107
2019-09-30	100
2019-12-31	65
2020-03-31	40
2020-06-30	12
2020-09-30	12
2020-12-31	11
2021-03-31	4
2021-06-30	6
2021-09-30	4
2021-12-31	4
2022-03-31	5
2022-06-30	5
2022-09-30	7
2022-12-31	1
2023-03-31	1
2023-06-30	2
2023-09-30	1